[LinuxBIOS] 440BX progress.
segher at kernel.crashing.org
Sun Nov 26 19:02:51 CET 2006
> I'm basically using this code in auto.c (based on bitworks/ims stuff):
> sdram_initialize(sizeof(cpu)/sizeof(cpu), cpu);
> ram_check(0x10000000, 0x2000000);
> Is that the canonical way to test whether RAM init works?
The "canonical" way is to attach a memory bus analyser to
your board. Failing that, you can run some stress tests
(like, boot Linux and do some disk+network load on it, or
similar). If everything works, your memory works, eh? :-)
> What's the absolute minimum config I need to get _something_ to boot,
> that I can verify that RAM init works?
You can dump out the PCI config space of the memory controller
after its init -- so you can check if that looks good (against
the data sheet). After that, try a "Hello, World!" payload.
Take little steps at a time :-)
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